“That’s why we are investing billions of pounds to improve the network to deliver a safe and high performing railway for our customers in the Anglia region.”

Great Northern, meanwhile, which runs the line from King’s Lynn to London, was one of the worst in the country for reliability and punctuality, according to the latest ORR figures for the first quarter of 2018/19.

Just over 80pc of its trains ran on time while 7.3pc where either cancelled or classed as “significantly late”, meaning they were delayed by at least 30 minutes.

Run by Govia Thameslink Railway, it was badly hit by timetable changes earlier this year.

East Midlands, which runs the line from Norwich to Liverpool, had some of the best figures for reliability and punctuality in the country in the first quarter of 2018/19.